5x2 (also Cinq fois deux; ) is a 2004 French film directed by François Ozon, which uncovers the back story to the gradual disintegration of a middle class marriage by depicting five key moments in the relationship, but in reverse order.

Plot

A young married couple, Gilles and Marion, are in a lawyer's office. The lawyer reads out the formal terms of their separation. Then, they book a hotel room together. We then go back in time, with the second chapter showing a tense dinner party, at which Gilles appears to admit to infidelity. The third chapter shows their son's birth, which Gilles missed by several hours, leaving Marion in the hospital with only her parents. The fourth chapter shows their wedding day. The final chapter takes place at an Italian beach resort, where their relationship began.